Time division multiplex communication system conference circuit



March 2, 1965 w. F. BARTLETT ETAL 3,171,896

TIME DIVISION MULTIPLEX COMMUNICATION SYSTEM CONFERENCE CIRCUIT FiledJuly 26, 1960 23 Sheets-Sheet s I CALUNG LINE STORE-I22 Fl6.-3

March 2, 1965 w. F. BARTLETT ETAL 3,171,896

TIME DIVISION MULTIPLEX COMMUNICATION SYSTEM CONFERENCE CIRCUIT FiledJuly 26. 1960- F|G.4

23 Sheets-Sheet 4 CALLING LINE STORE-12g March 2, 1965 w. F. BARTLETTETAL 3,171,895

TIME DIVISION MULTIPLEX COMMUNICATION SYSTEM CUNFERENCE CIRCUIT FiledJuly 26, 1960 23 Sheets-Sheet 5 35 CALLING LINE AND TRUNK MATRIX-I24 aeoTO LINE CIRCUITS CLOCK PULSE r r "loo" lzml March 1965 w. F. BARTkETTETAL 3,171,896

TIME DIVISION MULTIPLEX COMMUNICATION SYSTEM CONFERENCE CIRCUIT FiledJuly 2:5 Sheets-Sheet s' F|G.6 A $63M 370 TO LINE CIRCUITS TO TR LLNKCIRCUITS March 1965 w. F. BARTLETT ETAL 3,

.nm: nxvxsxon MULTIPLEX commxcxrzou sysmu CONFERENCE c'mcun 23Sheets-Sheet 7 Filed July 26, 1960 H6 7 TERMINATlNG LINE STORE- 12aMarch 2, 1965 W. F. BARTLETT ETAL Filed July 26. 1960 25 Sheets-Sheet 8TERMINATING LINE STORE-I28 s'ro FIQB aeo 805 I Lsog :2 E913 so4 806 ,szo

' 1 D Q W 5% 4 4 P 1 1 Q a 8 G a i a L l0 I '0 D (I -f J L D G 2 I500 r'1 LSOI, s04, 40

h fl 40 830 F at? 803 I 805 I 806 u I Mamh 1965 w. F. BARTLETT ETAL3,171,896

TIME DIVISION MULTIPLEX COMMUNICATION SYSTEM CONFERENCE CIRCUIT FiledJuly 26, 1960 23 Sheets-Sheet 9 TERMIN ATING LINE AND TRUNK MATRIX- I30TO LINE CIRCUITS March 2, 1965 w. F. BARTLETT ETAL 3,171,396

TIME DIVISION MULTIPLEX COMMUNICATION SYSTEM CONFERENCE CIRCUIT FiledJuly 26, 1960 23 Sheets-Sheet 1O TERMINATING L INE AND TRUNK MATRIX- 9To LINECIRGUITS TO TRUNK CIRCUITS r A f A FIG. IO

March 2, 1965 w. F. BARTLETT ETAL 3,171,896

TIME DIVISION MULTIPLEX COMMUNICATION SYSTEM CONFERENCE CIRCUIT FiledJuly 26, 1960 23 Sheets-Sheet 1 1102 FIG."

CLOCK lll4 was.- AND TIME SLOT ALLOTTER- I20 ll4l H42 March 1965 w. F.BARTLETT ETAL 3,171,895

TIME DIVISION MULTIPLEX COMMUNICATION SYSTEM CONFERENCE CIRCUIT FiledJuly 26, 1960 23 Sheets-Sheet l2 FIGJZ DIGIT DETECTOR AND I234 Tmlg SLOTALLOTTER-lgg 250 I l I252 I Mardl 1965 w. F. BARTLETT ETAL 3,171,896

TIME DIVISION MULTIPLEX COMMUNICATION SYSTEM CONFERENCE CIRCUIT FiledJuly 26, 1960 23 Sheets-Sheet 13 $22 FIG. l3 BIO I300 302 I308 L ma r em mm:- 1%

March 1965 w. F. BARTLETT ETAL 3,171,396

TIME DIVISION MULTI LEX COMMUNICATION SYSTEM CONFERENCE CIRCUIT FiledJuly 26, 1960 23 Sheets-Sheet 14 TEYRM' LINE STORE-I28 March 2, 1965 w.F. BARTLETT ETAL 7 TIME DIVISION MULTIPLEX COMMUNICATION SYSTEMCONFERENCE CIRCUIT Filed July 26, 1960 23 Sheets-Sheet l5 TERMINATINGLINE STORE-l 2 March 1965 w. F. BARTLETT ETAL 3,171,396

TIME DIVISION MULTIPLEX COMMUNICATION SYSTEM CONFERENCE CIRCUIT FiledJuly 26, 1960 23 Sheets-Sheet 16 I396 TRUNK F lNDER- l2 6 March 2, 1965TIME DIVISION MULTIPLEX COMMUNICATION SYSTEM CONFERENCE CIRCUIT FiledJuly 26, 1960 FIG. I?

23 Sheets-Sheet 17 TRUNK FINDER March 2, 1965 w. F. BARTLETT ETAL 3,

TIME DIVISION MULTIPLEX COMMUNICATION SYSTEM CONFERENCE CIRCUIT FiledJuly 26, 1960 23 SheetS-She et l8 CLOCK PULSE FIG. l8

CONFERENCE CONNECTOR-I34 March 2, 1965 w. F. BARTLETT ETAL 3,171,895

TIME DIVISION MULTIPLEX COMMUNICATION SYSTEM CONFERENCE CIRCUIT FiledJuly 26, 1960 37 7 2:5 Sheets-Sheet 19 FIG. l9 I966 I964 CONFERENCECONTROL CIRCUIT-I36 March 1965 w. F. BARTLETT ETAL 3,171,895

TIME DIVISION MULTIPLEX COMMUNICATION SYSTEM CONFERENCE CIRCUIT FiledJuly 26, 1960 25 Shee eat 20 CONFERENCE CONTROL CIRCUIT-I36

1. IN AN AUTOMATIC COMMUNICATION SYSTEM, A PLURALITY OF COMMUNICATIONCIRCUITS EACH IDENTIFIED BY AN INDIVIDUAL DESIGNATION, A COMMONCOMMUNICATION CHANNEL, CONFERENCE MEANS FOR CONNECTING MORE THAN TWO OFSAID CIRCUITS FOR COMMUNICATING OVER SAID CHANNEL, A PLURALITY OF SIGNALCIRCULATING MEANS FOR CONTROLLING THE CONNECTION OF SAID CIRCUITS TOSAID CHANNEL, AND MEANS IN SAID CONFERENCE MEANS FOR STORING THEDESIGNATION OF EACH CIRCUIT INVOLVED IN A CONFERENCE CONNECTION IN SAIDSIGNAL CIRCULATING MEANS IN A DIFFERENT ONE OF A PLURALITY OF DISTINCTTIME POSITIONS IN A REPETITIVE TIME FRAME.